JPS6133945B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a curtain wall rain closing mechanism formed by sequentially installing curtain wall units assembled into units with frames, surface materials, etc. in the vertical and horizontal directions on site. It is something.

Conventionally, this type of rain closure has been done by filling the joints between the units with a seal and maintaining watertightness through the adhesive strength of this seal, but this method is dependent on the material of the seal and the quality of the on-site seal construction. There is a problem that there is variation in performance due to the seal construction, and it is almost impossible to perform complete seal construction over the entire length, making it difficult to obtain a perfect seal function. Further, there were problems such as peeling and breaking due to deterioration of the seal, or stress being applied to the seal due to thermal expansion and contraction of the curtain wall, resulting in peeling and breaking of the seal. As described above, with conventional rain closures of this type, there is a great deal of concern about variations in seal performance and long-term performance maintenance, so improvements in this regard are currently desired.

As an improvement to this, a so-called open joint type curtain wall was proposed that utilized the equal pressure principle. As shown in FIGS. 4 and 5, a horizontal space c is formed between the upper and lower units a and b, a vertical space d is formed between the left and right units, and outside air is introduced into the horizontal space c. This is intended to improve watertightness by making the horizontal space c and the vertical space d whose inside and outside are closed with sealing materials e and f equal to the outside pressure.

In this case, the horizontal space c forms a hanging wall g from the outdoor surface of the upper unit a, and a rising wall h from the indoor surface of the lower unit b, and the vertical space c forms a hanging wall g from the indoor surface of the lower unit b. , a horizontal space c is formed between the rising wall h, a seal i is applied between the rising wall h and the upper unit a, and a gap j is formed between the hanging wall g and the lower unit b to serve as an outside air inlet. It was hot. In this case, if raindrops adhere to the sealing material i, water leakage will occur when the pressure in the horizontal space c becomes higher than the pressure in the indoor side k, so the sealing material i should be positioned higher than the gap j. I had to punish him. For this reason, it was necessary to form tall hanging walls g and rising walls h at the upper and lower ends of the unit, which made the structure of the unit extremely complicated and the construction workability was also poor. Furthermore, it is difficult to guarantee that rainwater droplets that have kinetic energy and fly in from the gap j will not completely reach the seal part i.

This invention was made in view of the above circumstances, and it forms continuous horizontal spaces and vertical spaces between the upper and lower and left and right units that are arranged continuously in the upper and lower directions, and the left and right units. The vertical space is sealed with a sealing material, the outdoor side is opened to the outside air, the vertical space is sealed inside and outside with a sealing material, and a drainage material is provided in the horizontal space to cross the vertical space to divide the vertical space into upper and lower parts, This drainage material provides a watertight structure for a curtain wall in which the outdoor side of the sealing material provided on the indoor side of the horizontal space is covered. This prevents and drains rainwater, etc. from entering the room from the outside based on the principle of equal pressure.

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 2 shows the rain protection structure of the part that connects the opening unit A and the spandrel unit B. Waku 2,
A plurality of units consisting of a lower frame 3 and vertical frames 4, 4 are arranged in series in the horizontal direction, and the upper frame 2 and lower frame 3 are fixed to the frame 7 via anchors 5, 5 and bolts 6, 6, respectively. There is.

The opening units A constructed in this way are laterally connected to each other via the joint battens 8 as shown in FIG. At this time, the joint portion eye plate 8 is formed in a substantially H-shape or I-shape in cross section, and its 4
A tight material attachment 8a' is provided at the tip of each of the two leg portions 8a, 8a..., and the main vertical frame 4 of each unit The vertical space C formed between them is sealed from the outside air. Further, the vertical space C and the interior side of the vertical frames 4, 4 are sealed by a sealing material 9'' attached to the groove 9a'.

On the other hand, in the vertical direction of opening unit A,
A horizontal space D that is continuous with the vertical space C is formed between vertically adjacent units, and this horizontal space D is sealed from the outdoor side by sealing materials 16 and 17 placed on the indoor side, so that the outdoor The cage communicates with the outside as described below. In this horizontal space D, a drainage material 10 is arranged between the lower frame 3' or the upper frame 2' of the adjacent spandrel unit B. The draining material 10 is disposed continuously across the vertical space C, as shown by the broken line in FIG. This draining material 10 includes a first wall portion 10a vertically arranged on the inside of the room, and a first wall portion 1
an inclined part 10b protruding downward from approximately the center of 0a toward the outdoor side; a second wall part 10c protruding upward from this inclined part 10b; A third wall portion 10d protrudes downward from the inclined portion 10b on the outdoor side of the wall portion 10c, and a fourth wall portion 10e protrudes downward from the tip of the inclined portion 10b. The lower end of the lower frame 3 or the lower frame 3' of the spandrel unit B is connected to the lower frame 3 or the lower frame 3' of the spandrel unit B by the tight material 11 installed in the tight material attachment groove 10a' formed at the upper end of the first wall portion 10a. The first
The upper frame 2 or the upper frame 2 of the spandrel unit B is connected to the upper frame 2 or the spandrel unit B by the locking portion 10a'' formed at the lower end of the wall portion 10a and the locking portion 10d' formed at the tip or lower end of the third wall portion 10d. '.

As mentioned above, a vertical space C and a horizontal space D are formed around the entire circumference of each unit A or B. These spaces C and D are the hanging walls 3 of the lower frame 3 or 3' that cover the outdoor side of the draining material 10.
Each space is communicated with the outside through air introduction holes 12, 12' provided in a and 3a' and slit-shaped gaps between the upper frame 2 and lower frame 3', and between the lower frame 3 and upper frame 2'. The insides of C and D are formed so that the pressure is equal to the outside pressure.

In addition, drainage holes 13 and 14 are provided in the lower part of the inclined part 10b and the second wall part 10c of the draining material 10, respectively, and the rainwater that has entered the horizontal space D through these drainage holes 13 and 14 is drained to the outside. It is designed to be discharged to In addition, rainwater falling from the drainage hole 14 falls on the upper surface of the upper frame 2 or 2', flows in the longitudinal direction, falls within the vertical space C, and flows into the lower horizontal space D.
and from there it is discharged to the outside. Further, an air hole 15 is provided in the lower part of the first wall portion 10a, and the air hole 15 allows the sealing members 1, which are attached to the inside of each unit A and B, to engage with each other.
Similarly, the space E formed between 6 and 17 and the first wall portion 10a is communicated with the outside to prevent rainwater from entering the space E, or even if rainwater does enter, the above-mentioned method is provided. It is designed to be able to be discharged to the outside using a similar equal pressure principle.

According to the embodiment of the rain protection mechanism of the present invention configured as described above, a drainage material 10 is provided between each curtain wall unit A and B, which is continuous horizontally and crosses the vertical space to divide the vertical space into vertical parts. In addition, the left and right curtain wall units A,
A longitudinally continuous joint part batten 8 is interposed in A to form a vertical space C and a horizontal space D that communicate with each other around the entire circumference of each unit A and B, and communicate these spaces C and D with the outside air. Since the inside of each of these spaces C and D is formed at the same pressure as the outside pressure, it is possible to prevent rainwater etc. from entering the room from the outside due to the equal pressure principle, and in the event that the above-mentioned spaces, Even if rainwater enters D, it can be quickly drained outside. Furthermore, the installation is extremely simple, as it only needs to be assembled between each curtain wall unit A and B, which are assembled on site, and the construction time can be significantly shortened compared to construction using conventional sealing materials. can.

As explained above, according to the rain closure mechanism of the present invention, since the horizontally continuous space is communicated with the outdoor wall and the pressure is made equal to the outside pressure, all water intrusion is prevented due to the pressure difference. In the unlikely event that rainwater enters due to kinetic energy, etc., it can be blocked by the draining material and drained immediately. Therefore, as described above, the rainwater does not hit the sealing material on the indoor wall, ensuring safe watertight performance. It is possible to maintain the performance of the seal, and there is no variation in the performance of the seal like in rain cover mechanisms using conventional sealing materials.In addition, there may be gaps in the interior sealing material due to long-term use or poor installation. Even if rain occurs, the draining material blocks rainwater, preventing water from leaking into the interior walls, and making it possible to maintain a stable rain cover mechanism over a long period of time.

Also, when compared with the conventional example shown in Figs. 4 and 5, in the conventional example, there is a gap formed on the outdoor side of the horizontally continuous space that serves as an outside air inlet, and a gap between the indoor and outdoor spaces. In the past, it was necessary to form a large height difference between the seals formed at the upper and lower ends of the unit, but with this invention, this can be done with almost the same height, and the upper and lower ends of the unit There is no need to form tall hanging walls or rising walls. This makes the structure of the unit relatively simple and improves workability.

Further, according to the present invention, since the indoor sealing material portion at the intersection of the vertical and horizontal spaces of each curtain unit, where gaps are particularly likely to occur, is covered with a drainage material, water leakage from this portion is eliminated. Furthermore, even if water leaks in the vertical space for some reason, the vertical space is divided into units by the draining material, so it has the unique effect of being able to drain water to the outside at certain heights.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the line --- in FIG. 1, FIG. 3 is a cross-sectional view taken along the -- line in FIG. 1, and FIGS. 4 and 5 are explanatory diagrams showing a conventional example. In the figure, A...opening unit, B...spandrel unit, C...vertical space, D...horizontal space, 1
...Glass, 2,2'...Top frame, 3,3'...Bottom frame,
4...Vertical frame, 5...Anchor, 6...Bolt, 7...Structure, 8...Joint part batten, 8a...Legs, 8a'...
Tight material attachment structure, 9... Tight material, 10... Draining material, 10a... First wall portion, 10a'... Tite material attachment groove, 10a''... Locking portion, 10b... Inclined portion, 1
0c...Second wall part, 10d...Third wall part, 10
d'...Locking part, 10e...Fourth wall part, 11...Tight material, 12, 12'...Air introduction hole, 13, 14...Drain hole, 15...Air hole, 16, 17...Sealing material .

Claims (1)

[Claims] 1. In a curtain wall in which a plurality of curtain wall units are installed adjacent to each other, a horizontally continuous horizontal space is formed between the top and bottom of the curtain wall unit, and a vertical space is formed between the left and right sides of the curtain wall unit that communicates with the horizontal space. A continuous vertical space is formed, and the indoor side of the horizontal space is sealed with a sealing material, and the outdoor side is opened to the outside air,
The indoor and outdoor sides of the vertical space are sealed with a sealing material, and a drainage material is provided in the horizontal space that crosses the vertical space to divide the vertical space into upper and lower parts. A rain protection mechanism for a curtain wall, which is made by covering the outdoor side of a sealing material provided on the indoor side of the curtain wall.